<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)" href="https://bugs.freedesktop.org/show_bug.cgi?id=94605#c47">Comment # 47</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)" href="https://bugs.freedesktop.org/show_bug.cgi?id=94605">bug 94605</a> from <a class="email" href="mailto:grantgrundler@gmail.com" title="ggg <grantgrundler@gmail.com>"> ggg</a> <pre>Thought the current i915 driver parameters might be of interest: /sys/module/i915/parameters# for i in * > do > echo $i : $(cat $i) > done disable_display : N disable_power_well : 1 edp_vswing : 0 enable_cmd_parser : 1 enable_dc : -1 enable_execlists : 1 enable_fbc : -1 enable_guc_submission : N enable_hangcheck : Y enable_ips : 1 enable_ppgtt : 3 enable_psr : 0 enable_rc6 : 0 fastboot : N guc_log_level : -1 invert_brightness : 0 load_detect_test : N lvds_channel_mode : 0 lvds_use_ssc : -1 mmio_debug : 0 modeset : -1 nuclear_pageflip : N panel_ignore_lid : 1 prefault_disable : N preliminary_hw_support : 0 reset : Y semaphores : -1 use_mmio_flip : 0 vbt_sdvo_panel_type : -1 verbose_state_checks : Y and while I'm at it, DRM parameters as well: /sys/module/drm/parameters# for i in * ; do echo $i : $(cat $i); done debug : 0 edid_fixup : 6 timestamp_monotonic : 1 timestamp_precision_usec : 20 vblankoffdelay : 5000 Lastly, when I hit Ctl-N (open a new browser window) in chrome, I sometimes get the screen blank. this has happened too often to be coincidence.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>